Figure 3.

(a) Pyoverdin production reduction in ZnO-treated isolates. Pyoverdinfluorescence was measured at 460 nm while the samples were excited at 400 nmafter overnight culture in LB broth in the presence and absence of¼ MIC of ZnO.(b) Hemolysin reduction in ZnO-treated isolates. Absorbance of hemoglobin red color released by hemolysisofRBCs was measured at 540 nm.The data shown are the means ± standard errors of three biological experiments with three technical replicates each. *, significant P< 0.05.